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mr Goodwill [35]
3 years ago
14

Estimate the sum 7.234 + 3.9 + 6.56

Mathematics
1 answer:
kolbaska11 [484]3 years ago
5 0

7.234 + 3.9 + 6.56

7.234 + 10.46

17.694 (actual)

17.69 (rounded to the hundredths place)

17.7 (rounded to the tenths place)

18 (rounded to the ones place)

Hope this helps! ;)

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Why is (5+2) to the second power is not equal to 5 to the second power plus 2 to the second power is not equal
Olin [163]
Because 5 +2 is 7 and seven to the second power is 49. On the other hand 5 squared is 25 and 2 to the second power is 4 when you ad them together you get 29 you are taking to completely different numbers to the power of two and that’s why they aren’t equal
3 0
4 years ago
Read 2 more answers
Jenny has a $3,000 balance on her credit card with an 18% interest rate. If she makes no payments on her card and no late fees w
DENIUS [597]

Answer:

it would take about 4.2 years for her debt to double.

Step-by-step explanation:

With a principal of $3000, and an annual interest rate of 18%, the equation for accumulated debt as a function of time in years, would be given by the expression:

A(t)=3000\,(1+0.18)^t

now, if we want to find when the debt would double, we replace A(t) with $6000, and solve for the time 't' using logarithms to bring down the unknown (t) that resides in the exponent:

A(t)=3000\,(1+0.18)^t\\6000=3000\,(1.18)^t\\2=(1.18)^t\\log(2)=t\, \, log(1.18)\\t=\frac{log(2)}{log(1.18)} \\t=4.1878\,\,years

which we can round to approximately 4.2 years

7 0
3 years ago
(-10)+12? what is the sum
seropon [69]

<u><em>Answer: =2 *The answer should be the positive sign. </em></u>

Step-by-step explanation:

adding the numbers. add it's going to be add all together. sum it's a total of different amounts added together.

remove parenthesis.

-10+12=2

it's should be subtracting the numbers.

12-10=2

=2

Hope this helps!

Thanks!

Have a great day!

8 0
3 years ago
An engineering scale model shows a church that is 2 inches tall. if the scale is 1 inch = 256 feet, how tall is the actual churc
SVETLANKA909090 [29]

Answer:

Actual height of church = 512 feet

Step-by-step explanation:

Given:

Scale model;

1 inch = 256 feet

Height of church (Scale model) = 2 inches

Find:

Actual height of church

Computation:

Actual height of church = Height of church (Scale model) x scale length

Actual height of church = 2 inches x 256 feet/inches

Actual height of church = 2 x 256 feet

Actual height of church = 512 feet

8 0
3 years ago
NEED ANSWERED ASAP PLEASE<br> sin(0)= -4 sqrt 29 / 29
VladimirAG [237]

Answer:

Is - 4

Step-by-step explanation:

29/29  cancel it out

so it will leave -4 out

3 0
3 years ago
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